CONTENTS.CHAP. I. [CONCERNING SUB-LIEUTENANT DACRES]II. [THE FRENCH INSTRUCTOR]III. [REMOVED FROM THE NAVY LIST]IV. [THE MYSTERIOUS AIRSHIP]V. [A MOMENTOUS TRAIN JOURNEY]VI. [CHALLENGED]VII. [THE RETURN OF THE AIRSHIP]VIII. [WHITTINGHAME'S NARRATIVE]IX. [THE FLIGHT TO LONDON]X. [THE STOLEN PLANS]XI. [THE "METEOR"]XII. [THE "METEOR'S" DEBUT]XIII. [AN OFFICIAL AND AN UNOFFICIAL INSPECTION]XIV. [ACROSS GREENLAND]XV. [THE NORTH POLE]XVI. [IN THE NICK OF TIME]XVII. [ZAYPURU'S BOLD STROKE]XVIII. [THE DISASTER TO THE "LIBERTAD"]XIX. [INVESTIGATING THE WRECK]XX. [A HAZARDOUS PROPOSAL]XXI. [WITHIN THE CAVARALE PRISON]XXII. [DACRES REMINDS THE ADMIRAL]XXIII. [LOCOMOTIVE VERSUS AEROPLANE]XXIV. [A BRUSH WITH THE INDIANS]XXV. [THE CAPTURE OF THE CAVARALE]XXVI. [UNABLE TO RISE]XXVII. [PREPARING FOR THE PRESIDENT'S VISIT]XXVIII. [A PRISONER OF WAR]XXIX. [WORK FOR THE SEAPLANES]XXX. [THE FALL OF NAOCUANHA]XXXI. [A SURPRISE FOR DACRES]XXXII. [A SUBMARINE ENCOUNTER]XXXIII. [NEWS OF DURANGO]XXXIV. [THE CHASE]XXXV. [THE THUNDERSTORM]XXXVI. [THE ABANDONED FLYING-BOAT]XXXVII. [THE GALAPAGOS FISHERMEN]XXXVIII. [CORNERED]XXXIX. [DACRES' PROMOTION]